Michael Griffiths
26Patents
11h-index
13Co-inventors
72Inventor score
Filing activity: Jun 28, 2000 → Jun 30, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7040318B2 | Ventilator | Human Necessities | 65 | Expired |
| US6694004B1 | System and method for simultaneous ring service with centralized subscription data | Electricity | 42 | Expired |
| US6950508B1 | System and method for providing an away-from-home calling service | Electricity | 30 | Expired |
| US7137242B2 | Fuel system | Emerging Cross-Sectional Technologies | 22 | Expired |
| US7120688B1 | Systems and methods for an infrastructure centralized heartbeat | Electricity | 20 | Expired |
| US7729287B2 | Methods of providing simulation for communications systems and related systems and computer program products | Electricity | 16 | Active |
| US6655152B2 | Fuel control system for multiple burners | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US9617923B2 | Engine fuel control system | Emerging Cross-Sectional Technologies | 12 | Active |
| US9121349B2 | Fuel system | Emerging Cross-Sectional Technologies | 12 | Active |
| US10288294B2 | Combustion staging system | Mechanical Engineering; Lighting; Heating | 12 | Active |
| US8991186B2 | Fuel control system with servo valve controlled windmill relight mode | Emerging Cross-Sectional Technologies | 11 | Active |
| US6813876B2 | Fuel system | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US7204076B2 | Engine fuel control | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US7497083B2 | Fuel supply system | Mechanical Engineering; Lighting; Heating | 10 | Active |
| US9404423B2 | Fuel staging system | Mechanical Engineering; Lighting; Heating | 9 | Active |
| US11549687B2 | Combustion staging system | Emerging Cross-Sectional Technologies | 8 | Active |
| US6937710B1 | Methods and systems for providing usage pattern service for telecommunications customers | Electricity | 5 | Expired |
| US6771947B1 | Method and system for call administration | Electricity | 5 | Expired |
| US8366404B2 | Fuel system | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US7349530B2 | Methods and systems for providing usage pattern service for telecommunications customers | Electricity | 3 | Active |
| US8720482B2 | Fuel system | Emerging Cross-Sectional Technologies | 3 | Active |
| US7177409B2 | Systems and methods for providing calling plan information | Electricity | 2 | Expired |
| US7080503B2 | Control system | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US9739208B2 | Engine fuel control system | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US10969105B2 | Combustion staging system | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.